基于地质环境遥感调查与监测数据探讨洞庭湖演变规律
姜端午, 黄树春, 张苑平, 余德清
湖南省地质环境监测总站,长沙410007
A Discussion on the Evolution of the Dongting Lake Based on Geo-environmental Remote Sensing Investigation and Monitoring Data
JIANG Duan-Wu, HUANG Shu-Chun, ZHANG Yuan-Ping, YU De-Qing
General Geological Environmental Monitoring Station of Hunan Province, Changsha 410007, China
摘要 20世纪70年代、2000年和2007年3期地质环境遥感调查与监测结果表明: 洞庭湖地区存在新构造活动,断陷盆地仍处于构造沉降期。
三峡水库蓄水以前,泥沙淤积严重,湖泊快速变小,自然湿地变少,人工湿地增多; 三峡水库蓄水以后,湖泊岸带变化小,自然湿地和人工
湿地变化不大,洲滩发育出现分化; 周边及上游水土流失、荒漠化状况不断好转。三峡水库运行后,由于入湖泥沙、水量减少,东洞庭湖将
延续淤积变小趋势,但速度有所放
缓; 南洞庭湖将冲刷加深但面积不会变小; 目平湖将延续原有冲淤状况,淤积继续增高,但速度有所放缓。洞庭湖的环境问题将不再是洪
水和泥沙淤积,而是枯水期水位降低和地下水水位降低,以及由此引起的干旱、农业鼠害、排污能力降低等其他环境问题。
关键词 :
分析软件 ,
ERDAS ,
正射纠正 ,
雷达图像 ,
遥感图像 ,
数字摄影测量 ,
图像处理 ,
矢量数据 ,
正射影像 ,
传感器模型
Abstract :The results of geological environment remote sensing investigation and monitoring in the 1970’s, 2000 and 2007
show that new-tectonic activities do exist in Dongting Lake area, the rift basin is still in the tectonic subsidence phase,
and the changes of the geological environment in Dongting Lake area before and after the storage of water in the Three
Gorges Reservoir are obvious. All this indicates the evolution regularity of erosion and deposition in the Dongting Lake,
that is, the East Dongting Lake will continue to become smaller, but the speed will slow down;the South Dongting Lake will
experience deepened scouring, but the area will not become smaller; and the Muping Lake will remain in the original scour
state and continue to suffer silting up, but the speed will slow down. The environmental problem in the Dongting Lake will
become the problem of lower water level and decreased ground water level in dry season instead of the floods and siltation.
收稿日期: 2010-04-21
出版日期: 2010-11-13
基金资助: 中国地质调查局地质调查项目“长江流域基础地质遥感调查与监测”(编号: 1212010911081)。
通讯作者:
姜端午(1963-),男,教授级高工,主要从事遥感地质环境应用研究。
引用本文:
姜端午, 黄树春, 张苑平, 余德清. 基于地质环境遥感调查与监测数据探讨洞庭湖演变规律[J]. 国土资源遥感, 2010, 22(s1): 124-129.
JIANG Duan-Wu, HUANG Shu-Chun, ZHANG Yuan-Ping, YU De-Qing. A Discussion on the Evolution of the Dongting Lake Based on Geo-environmental Remote Sensing Investigation and Monitoring Data. REMOTE SENSING FOR LAND & RESOURCES, 2010, 22(s1): 124-129.
链接本文:
https://www.gtzyyg.com/CN/10.6046/gtzyyg.2010.s1.26
或
https://www.gtzyyg.com/CN/Y2010/V22/Is1/124
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